I am trying to find out what is the linear equation that the ACS712 20A Current Sensor uses. I have attached the code below. /* Measuring Current Using ACS712 */ const int analogIn = A1; int mVperAmp = 100; // use 100 for 20A Module and 66 for 30A Module int RawValue= 0; int ACSoffset = 2500; doub…

Mathematical Calculation of Current with ACS712 20A

DaveEvans April 4, 2018, 5:26pm 14

Why are you averaging the sensitivity of the 5A sensor (185) and the 30A sensor (66)?

The OP is using the 20A sensor (100).

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